The phrase "Proper story" in the context of refers to the cinematic adaptation of the real-life rise and fall of middleweight boxer Jake LaMotta .

: By the mid-1950s, Jake is overweight, retired, and estranged from his family . After a stint in prison for corrupting the morals of a minor, he ends up as a pathetic stand-up comedian in New York, practicing a monologue in front of a mirror—a broken man facing his own reflection . Behind-the-Scenes Facts

For more details on the production, you can check the Raging Bull Wikipedia page or view expert reviews on RogerEbert.com . Raging Bull (1980) - Plot - IMDb

: In the early 1940s, Jake LaMotta (Robert De Niro) is a talented but volatile boxer in the Bronx . He pursues the beautiful Vickie (Cathy Moriarty) while climbing the ranks, eventually earning a shot at the championship after reluctantly cooperating with the Mafia .

: Jake achieves his dream by winning the middleweight title in 1949 . However, his success is overshadowed by extreme paranoia and jealousy. He becomes convinced Vickie is unfaithful, eventually assaulting both her and his loyal brother/manager, Joey (Joe Pesci) .

: Director Martin Scorsese chose to film in black and white to distinguish it from other boxing films like Rocky and to reflect the era's gritty realism .

The film, widely regarded as one of the greatest American movies , is a dark biographical drama that explores themes of self-destruction and toxic masculinity .